NCRC Meeting, Monday, Sept 14, KVH @ 7 PM

Our regular meeting will be held on Monday at 7 PM, at KVH.

In addition to our regular short business meeting, we will have a presentation by Mike Cullen, K1NPT, on Rhode Island’s rapidly growing Maker Movement (think home-brew electronics or mechanical systems) and the opportunities to make ham radio an integral part of that and STEAM education (Science, Technology, Engineering, Arts, and Mathematics).

Allison Phillips Gives Presentation on Prototyping

Allison Phillips, a professional engineer, gave a walk through of the design, simulation, and production of simple circuits using free tools, during last nights NCRC meeting.

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Allison Phillips Presenting to NCRC Members

Allison used LT-Spice, a free circuit simulation tool, available from Linear Technology at:  http://www.linear.com/designtools/software/

For her PCB Prototypes, she used another free tool that is well integrated with the DigiKey parts catalog, called ExpressPCB.  This CAD software is used to capture a schematic and layout a PCB which is then produced in a few days by ExpressPCB (a set of 3 identical small boards costs $51, for example)

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Allison reviews Googled oscillator designs

Coincidentally, the February 2015 QST had an article on rapid prototyping:  “Make Homebrewed Look Factory Built”.  That article also described using ExpressPCB, as well as other companies to produce metal enclosures and attractive front-panels. (Reprinted with permission, February 2015 QST; copyright ARRL)

(Thanks to Dave Brown, KC1AAA, for the photographs)